Ashton Kutcher better be prepared to go all out this Valentine's Day. You know, if, like, he happens to run into Mila Kunis or anything.

"How is he doing, I wonder? Do you talk to him at all?" Ellen DeGeneres played coy with Kunis, asking the actress if she keeps in touch with any of her That '70s Show costars, during an interview airing tomorrow on Ellen.

"When's the last time you talked to him?" DeGeneres asked, the picture of innocence. "I'm just asking...It's a showbiz question!"

Well, everybody—including Ellen—knows darn well that she and Kutcher are pretty hot and heavy. And Kunis, even though she says she's "never put much emphasis" on Valentine's Day, is thinking that a "simple, sweet, meaningful" gesture would be great come Feb. 14.